Rainbow dash

A cyan pegasus with a rainbow mane approaches you. Checking her out, she is not quite as curvacious as your current pursuit but is very athletic looking.

She smiles at you and says “Yeah, it's good that Pinkie has something to spend all of her energy on. If that filly didn't bounce around so much she would just get fat on all this cake. Well good meeting you Springy I got to go practice my stunts.”

She flies off so quickly that you don't really have any chance to respond, but you figure you made a good first impression any way and maybe you will get another chance at her at the party. You wonder why she called you 'springy' until you looked down and saw your erect penis standing at full mast. You hide it just in time as a pony starts walking back into the room.