Red lingerie unleashes something in me [Mf]

So I’m male and a senior in college, this happened last year with my now girlfriend. The girl in question, let’s call her Rachel, is about 5’10, has dark brown hair going down to the bottom of her shoulder blades, dark amber eyes, perky C cup breasts, and a round ass that will be etched into my brain for the rest of my life.

Backstory:

Rachel and I had gone to the same high school, we knew of each other but never really talked until our junior year music theory class. She’s a theater girl and a hell of a singer, I’m a tenor saxophonist trying to make it seem like I know what I’m doing.

Anyway, it’s a really small class so we all get to know each other pretty quickly. Rachel and I actually hit it off but it’s another month and one obvious hand on my leg for me to ask her out.

We go on a few dates and while it wasn’t exactly a Hollywood movie, we had a good time and had done some minor make out stuff, though nothing sexual yet.