I Feel Nothing, Twi.

Twilight doesn't believe that Dash doesn't get off to the sexy outfit that she has and wants to prove she does

As Dash is moving out, Twilight is the only one to help with moving boxes out of the house, but Twilight discovers naughty items and sexy outfits that belong to her friend. What she finds so weird? Dash doesn't find them sexy and not making her turn on at all. She just finds them cool and neat to collect.
Twilight doesn't buy it and goes on to prove her friend wrong!