Rolling her body onto mine, Lauren stretches out so her pussy is directly against my spent cock and her breasts are mashed into my chest. Looking into my eyes she says, "You should probably walk Kristina home. It's late and her house will be dark."

"I probably should," I agree, wrapping my arms around my sister and holding her against me. Pressing her lips against mine, she gives me a quick kiss and rolls back off.

"Hurry back," she says, wiping the mixed juices from her abdomen. Who knows what that was all about? No doubt my sister is horny as hell after watching all the fucking this afternoon. Are...