You decide to give your mother a very special gift. Besides, having sex with a completely different species would be totally wrong, right? I mean, sex with an animal, gross. On top of that, you mother does seem to be in the mood, since she was just playing around with Lassie which pikes a question in your mind.

'Is my mom a lesbian?' you ask yourself, not that there's anything wrong with that, but you always figured she was into stallions. Crawling up onto the bed with your erection at full mast and practically guiding your way, you give Lassie a slight push to the side, crawling atop you mother.

Lassie lets out a hearty chuckle. “Jeez, so much for chivalry,” she quips with a laugh as she sits at the bottom of the bed. You hear a buzzing coming from behind and turn you head over your shoulder and notice Lassie is pleasuring herself with a vibrator.

'Ewwww, gross,' you think as the image of the dog pleasuring herself is burned into your mind. Your head is grasped by a pair of hooves and turned back to your mother as she smiles to you.

“Did somepony special come to give me a surprise mother's day gift?” she practically coos, bashing her eyes to you in a most lustful way that has your rod twitching between your bodies. You nod feverishly with a deep red blush.

"Uh-huh," you reply.

Your mother looks down to your shaft which is oozing precum onto her belly. “Oh my, Buttons! I had no idea how big you were!” she exclaims, making your thick pony cock stiffen more. You give a premature jerk of your hips, rubbing the underside of your cock along her soft belly and smearing your pre into her fur.

Rocking your hips back slightly, you line your tip up with her wet entrance. A gasp escapes your mouth from the intimate contact. Pushing forwards, the small resistance thwarts your attempt to penetrate her, earning a gasp from both of you as the underside of your cock slides against her folds.

Rocking back, you align yourself with her again and slowly start to push forwards. A moan leaves your mother's mouth as her back arches upwards, belly rubbing against yours as the head of your flared cock spreads her equine lips apart. You can feel slight resistance from her tightness that begins to spread around the girth of your member.

Your head enters and is follow by two meaty inches that earns an honest moan from your mother. You feel something flick against the underside of your cock and dare a quick glance. Her clit winks at you once more as you look back to your mother and continue to push yourself deeper into her depths.

She wiggles beneath you as you drive inch after glorious inch into her velvety depths, finally hilting yourself inside of her. A deep blush comes across both your cheeks as you pause there for a moment, her clit winking once or twice as you remain hilted inside her.

You hear a moan come from behind you and note that Lassie is still rubbing one off at the end of the bed whilst watching the two of you, which leaves you a little uncomfortable but your mind is taken off it when you feel your mother's inner muscles give you a gentle squeeze. “Come on Buttons, give mommy a good rutting for Mother's Day,” she whines to you, Lassie piping up from behind.

“Yeah, cum on. Incest is wincest dontcha know?” she laughs, making you shudder. You didn't need to hear that.

Pulling back, you withdraw yourself from your mother's warm confines and shiver as the blissful feeling of her embrace leaves you. Looking down, you watch as you push yourself back inside of her, her slit stretching to accommodate your thick girth.

Your mother lets out a whiny moan from beneath you as you plunder her depths, hilting yourself once more. You let out a panting huff as you feel a surge of tingly sensations run up the length of your cock, like nothing you have ever experienced before.

Starting to pick up the pace, you begin rocking back and forth into her heavenly hole, a wet slapping sound echoing in the room. At first you think it to be the sound of your entwined sex, but you soon realize it's Lassie, pounding away at her canine pussy with that vibrator, moaning lewdly from time to time. 'Gosh, she's so weird,' you think quietly.

Your mother grabs hold off your cheeks like a baby. “Oooh, I'm so proud of my big boy, all grown up,” she chimes, pulling you in for a kiss and wrapping her hindlegs around your waist. You let out a rather primal huff as you push yourself further into her, grinding your hips against hers.

You don't care whether or not other ponies think it's taboo, this feels good, really good. “Mom,” you say. She looks you right in the eyes.

“Yes sweetie?” she asks while you continue to slowly slide in and out of hr glorious pussy, which continues to wink against the underside of your shaft.

“I really, really love you,” you moan out as you let your face nuzzle up against her chest. You begin to pant, a growing feeling building up in your groin. Precum begins to ooze out of your cock at a steady rate, mixing with your mother's pussy juices and starting to form a wet spot on the bed beneath the two of you.

“Ughf,” you groan out, steadily humping away at your mother, your hooves placed at her sides and tightening their grip around her. She looks to you with gleaming eyes and before you can really say a thing, her lips are pressed to yours. Your eyes flutter shut as you feel her front hooves moving up your sides, caressing your body in a rather passionate way.

In the blink of an eye, your entire body is flipped, much to your surprise. You let out a gasp as you feel your member sprung free from her enticing warmth but it's not soon after that she's straddling herself atop of you.

Looking down to her dripping nethers, then back to her, then back to her-

“The show must go on!” Lassie cheers, which earns a frown from you. Your mother plants a kiss on your lips before giving you a wink.

“Just ignore her. She's special,” she giggles. Reaching one of her front hooves back, she gives your slick member a gentle stroke before lining it back up with her entrance. You look down and watch as she slowly impales herself on your joystick.

Her lips slowly part, stretching a little as she teasingly starts to take your entire length. With a coltish grunt however, you jerk upwards. Your entire cock is shoved into her pussy in one brief motion, a sloppy wet smacking sound echoing throughout the room as your balls slap against her flank.

“Buttons! How naughty of you,” she chimes, pinning you down. “Mommy should punish you for that,” she tells you, your gut twisting for just a fracture of a second as you wonder if she's being serious. Seeing the look on your face, she gives you a reassuring kiss before starting to move her hips against yours.

You let out a pant as your hooves grab her hips and you thrust yourself against her, letting out a high pitched moan that your mother seconds. “Oooh, Buttons! Who's a naughty little colt?” she asks and you blink for a moment as you pause, your mother still riding your cock like she's in a wild heat.

“Uhh... I am?” you nearly whisper. She begins to ride you a bit harder.

“I can't hear you sweetie, you'll have to speak up... Mmm, who's my naughty little colt?” she whines.

“M-me?” you answer questionably.

She let's out a long whiny moan as she looks to you. “Scream it for me... tell me you've been a really bad colt,” she cries out. You're not exactly sure what's gotten into her but you decide to play with it.

“I've been a bad colt! I need to be punished!” you cry out, a little afraid by what might happen but are shocked when she tenses up and a loud 'SMACK!' echoes in the room. Your mother lets out a scream of delight which leaves you shocked but then notice the red mark on her flank... which is shaped like a dog paw...

Lassie is sitting behind the two of you, her paw knuckle deep in her twat and a butt plug stuffed in her tailhole. It's a sight you'd rather forget and soon do as your mother leans down to you and gives you a big sloppy kiss, her tongue quickly invading your mouth.

Pulling back from the kiss and positioning her front hooves on each side of your head, she gives you a sultry look. “Buttons, you're so naughty, spanking mommy like that,” she chimes and you quickly point to Lassie, who's nearly rolling around on the end of the bed, drooling in ecstasy with her tongue lolled out the side of her mouth.

“But it was Lassie!” you try to explain but she's a little too lost in her own rising orgasm to care. You did however, like the feel of how she tensed up when Lassie spanked her and decide to experiment a little.

Giving her flank a mild smack, her body jolts and she tenses up a little just like before, making you moan out a lovely note that nearly matches hers. Enjoying the feeling, you spank her again and the increased resistance nearly brings you to your limit. You can feels your seed start to roll up the length of you cock, balls tightening as you simmer on your orgasm.

“M-mommy,” you moan out but don't get an answer. You're not sure what to do. You could get her pregnant if you came inside her... 'Couldn't I?' you ask yourself hesitantly.

“I... I'm gonna-” you start then feel a muzzle press up to your conjoined sexes, your mother letting out a wild scream of pleasure and yourself tensing up as you feel a soft pair of lips gently start suckling on your orbs, a tongue gingerly licking the underside of your slick length.

With a cry of pleasure your entire body stiffens, groin lurching forwards as you hilt yourself in your mother, flare of your cock expanding as the first jet of cum pours into your mother's receptive tunnel, followed by another powerful wave that has her body shuddering on top of you as her body falls against yours.

Holding her tight, you give a jerky thrust just as your unloading a third jet of seed into her. Things start to get a little hazy and you don't rightly know at which point you passed out...

Things start to slowly come back to you. Your eyes flutter as they slowly open and you feel yourself cuddling against your mother's warm embrace. Sure some ponies might consider it wrong, but to you it's perfect.

Nuzzling up to her, you coo a happy note of love and brush you muzzle into her chest. “I love you mom,” you tell her. There's a slight rustling in the bed behind you before and equally furry embrace wraps around you from behind, a pair of paws wrapping around your hips as a dog's muzzle rests on your shoulder.

“M-m-m-MOOOOOOM!”

Author's Note

You've chosen to give your mother a very special gift on Mother's Day. It may have come with unexpected results but at least your at home, in your mother's loving embrace...
Congratulations...