Horsedong Shimmer

“It’s not mine.” Sunset tilted her head to the side, lips thin, stretched into a hard line. “It physically can’t be mine.”

Vice Principal Luna huffed, crossing her arms in front of herself. Or she tried to, the swelling around her middle was starting to make it difficult to look properly miffed and disappointed. It was also starting to make her back ache if she stood for too long, so she shifted her arms up over her chest, but those were starting to swell and get tender to the touch too… Sighing in defeat she dropped her arms to her sides and settled on leaning her shoulder against the door frame being filled up by Sunset Shimmer.

“We believe it, indeed they are yours, and as soon as you consent to a paternity test, we can put the subject to bed.” Luna looked over her shoulder at her sister who had taken up a position on the hood of Sunset’s car. Celestia looked as swollen and tired as she felt, if not more. “Everyone is well aware that you sprout a functional horsedong on occasion when induced so by musical phenomena. And according to our calendars and personal memories of a certain party where your band performed, I and Celestia are quite convinced you are the father.”

“But...okay...I get that, but one, I don’t remember doing the sex with either of you. And two, I shoot horse sperm by the gallon! Even if you somehow got a hold of the stuff, which let me tell you...ew...then they still couldn’t be my kids!” Sunset shrugged, looking back and forth between the two sisters. “This is a non-negotiable fact of biology!”

“You grow a penis shaped like that of a horse, Ms. Shimmer.” Celestia patted her expanding stomach. “I think it’s safe to say we’ve left the normal bounds of biology behind.”

“But. I. Didn’t. Have. Sex. With. Either. Of. You!”

“Well, I distinctly recall feeling extremely stretched and worn in the morning, as if I’d had something of equine-like proportions thrust vigorously into me! Who else could it have been?” Luna threw up her hands. “How hard is it to fill a much smaller than gallon-sized cup, if doing so will clear your name as you seem to believe?”

“Because I shouldn’t be subjected to it in the first place?!” Sunset slapped her hands over her face and moaned into her palms. “It’s not my fault you two got drunk at a party, had a one night stand and now you have to deal with the unintended consequences!”

Celestia stood up and ambled up to the door to stand next to Luna, leaning her shoulder against the other side of the door frame. Like her sister she was also starting to see a swelling in her breasts along with her belly. Unlike Luna, however, she wasn’t wearing a sports bra and her nipples stood out firmly through her shirt. “Sunset, what if I told you, depending on how that test goes, it might not just be a one night stand? I wasn’t able to sit properly for two days after that party.”

“Or swallow properly.” Luna chimed in, leaning forward more so her cleavage showed.

“And frankly?” Celestia smiled and licked her lips. “I’d like to have that kind of trouble again.”

“Me too.”

Sunset gulped, leaning back away from the two taller women. “Um...so...where’s the cup I need to get my DNA in?”

Plastic crinkled and Luna produced said sample receptacle. “Put on some loud music and we can get this done quickly. Wouldn’t want the neighbors to hear, now would we?”

“N-nope!” Sunset cleared her throat and the doorway, letting them inside, the door closing a second after both a shirt and a set of panties hit the floor.