Yes

Zoe grins at your answer and strips herself and you of clothes. She gets on top of you and says "If getting your pussy fingered felt good let's how good it feels when you get fucked." Zoe thrusts into your pussy and you let out a moan. Zoe pounds into you and plays with your breasts.

Lost in pleasure your arms and legs wrap around Zoe who puts a nipple into her mouth and starts sucking on it. You feel Zoe start knocking at the entrance of your womb and all you can do is moan. Zoe let's your nipple fall from her mouth and she looks you in the eyes with a smile on her face.

"Hey Lucas what do you say about me filling that womb of yours full of sperm?" Zoe asks. All you can answer with is a moan which causes Zoe's smile to get bigger. "Great now take my load you slutty sister take my load and get knocked up!" Zoe shouts hilting herself and cumming inside you.

You moan in response and tears roll down your cheeks. How can you call yourself a man when you enjoyed getting fucked and worse you enjoyed your sister most likely knocking you up. You cover your face with your arms and weep.