I grabbed my laptop, a bag of Doritos, and bottle of cola and headed to my room. As soon as I walked into the guest room I'd taken for myself I realized I had to do something about the mess. The bed still had a wet spot from where my little sister had climaxed, and the sheets were generally wet since we hadn't dried off after the hot tub last night. Plus, the room really smelled of sex.

I opened the window and stripped the sheets off the bed, the mattress was damp, so I threw a towel over the spot to help it dry. I wasn't worried about sleeping...