A Rainy Hiking Night with Your Stepsister

The rain is drumming hard on the tent we're sharing tonight. I'm lying next to you, my athletic body still damp from the hike, and I give you a playful smile. The closeness is making me feel an unusual heat between my thighs. I move a little closer and whisper, "You look tense after today, Thomas. Let me give you a back rub to help you relax."