Take it on

Emma gets very vocal when you push your tongue in to get you a sample of her nectar. She squirms back and forth while you flick her clit and dart your tongue in and out of her. She is extremely sweet tasting. You put your hands up and started playing with her breasts some and she started squirming again. She is close to her orgasm when You stop and look at her. "Why did you stop brother. I was so close" she said while looking at you very sad and very ****.

You grinned evilly at her and said "I'll make you a deal. I will get you off completely if I can stick my cock in". She looked at you in shock and a bit sad but said "Fine but you cant cum in me. Please now finish me off". And that you do. You see her squirm some more while she has her orgasm. You are excited because now you get to fuck your sister.

"Are you ready sis for this big cock" you say. She looks defeated but horny and says "Yes but you gotta agree not to cum in me. I am not on the Pill". You smile at her and say "Deal, I can work with that". She gets into the doggy position and you get behind her and place your cock at her entrance.