I just want to help you practice so when you have sex you can last longer. I know I'm your sister but it doesn't have to be weird. Lets start by touching each other. There's nothing wrong with that, it's not like we're fucking. You're cock looks so good though and I can taste it on my hand when I lick it. You're so hard, let me just put my mouth around it. Please? Doesn't it feel good having your little sisters mouth around your cock? If you're going to get better at fucking I think you'll have to put it inside me. Oh my god I didn't think my brothers cock would feel this good. Riding your cock is amazing but I know you want to put it in my ass- you're always staring at my ass. I want to taste my ass on your cock, let me suck your throbbing cock after you pull out of my tight little ass. Try your best not to cum, I want to fuck as long as possible.