Ashley's older sister Amy visiting from college

"Hey, Ash, I'm back! You left the door unlocked, stupid. Where are...whoa!"

You barely manage a squeak as Ashley's older sister, Amy, bursts into the room. It's easy to tell they're related - Amy is basically a bigger, older version of her younger sister. The only difference is that Amy is clearly a gym rat; her very feminine figure is bulging with well-defined muscle. Blood rushes to your cheeks as you take all of her in. Amy's outfit, merely a tight white tanktop and tiny denim shorts, leaves little to the imagination. Your eyes finally fall to an uncomfortably familiar and very large bulge in the front of her shorts. You gulp.

Unperplexed by your blatant staring, Amy waves a hand in front of your face. "Hey. You okay?"

"Ah, hello, yeah, I'm..." you stammer. "I'm Doug, Ashely's...friend."

"I know who you are, I met you before," Amy laughs, and you blush. "But why are you in one of my sister's skirts?"

You panic slightly. What would Amy, Ashley's Amazonian sister, do if she found out what had just happened?

"She spilled some, uh, water," you begin. "All over...my pants."

"She spilled water. Right. And did this 'water' come from her cock?"

You visibly jump.

"Her...her cock?"

Amy rolls her eyes and crosses her arms. You can't help but notice how this accentuates her already large breasts. You begin to get aroused again, against your better judgement. For once in your life you're glad you have a small cock, just so it won't make a visible tent in the skirt you're wearing.

"Don't play dumb with me, Doug. It smells like cum in here. What were you two doing?"

You have no idea how you're going to get out of this one.

"Alright, alright. You won't believe me if I tell you."

"Try me."

So you...