We rush into your room after breakfast, your sister just got in the shower so we have to be quick! I start jerking you off and talk about how hot last night was when I snuck in your room and we had sex.. and then this morning how flirty I was at breakfast...do you think she had any idea? I want you to fuck me again.. this time in doggy first before we do some missionary. Your dick just feels so good in me and all this sneaking around is so naughty, I love it. We're both about to cum, I say how bad you were for cumming in me last night but this time.. I need it. I beg for your cum in me and we both finish right before she gets out of the shower. We scramble to get our clothes on! I hope I sleepover again soon...