We watched a movie in bed last night, we must have fell asleeep before you could go back to your own room! I wake up to find you wanking in bed beside me ! Were you peeking under the duvet at my body while stroking? Let me be a good sister and help you out. You're so hard, this is turning me on soooo much! If I make you cum, you have to come back tomorrow morning and let me fuck you...