She shops for bras

Katie makes her way over to the bra section and you follow. She begins to look over the different styles, browsing one by one. Every step you take is a reminder of your new polka dot panties as the soft fabric rubs against your junk. Eventually Katie makes her way to a display of push-up bras, proudly modeled on mannequins above the display. “Ooh” she coos as she picks up a blue underwire push-up and inspects it. “What do you think?” She asks, holding it up to herself.

“I uh... it’s uh cute”, you stutter, partially avoiding eye contact out of embarrassment for your predicament.

“You don’t sound so sure.” She says, disappointedly, “I have an Idea!” Suddenly, you feel a weird pressure on your chest. An inch wide strap begins to tighten just below your pecs, and 2 smaller ones grow around your shoulders. You feel your pecs become cupped in smooth fabric as a bra encompasses you. You start to panic as you look down and see the visible outline of a bra under your shirt. “What do you think now?” She asks.

“I... I...” you once again stutter.

“You still don’t sound sure” she remarks, maintaining a air of innocence in her tone. You start to pull at your tshirt. Was it tighter? You look down and notice that your “breasts” were more defined. You were wearing the same shirt but it was definitely a little tighter. The push-up bra was also definitely padded.