I have just been given a huge choice to make, one I don't know if I can ahead with.

My step mom who's only 36, was told eight months ago she has a degenerative disease which will eventually make incapable of movement.

Two days ago she asks me after walking into my bedroom naked, if i'd consider having sex with her. She already knew I have a large cock after she'd discovered me masturbating earlier that week. I'll not lie I seriously thought about fucking her there and then. She very good looking and has a fantastic figure. Only the thought of my dad popping into my head stopped me.

This morning after my dad went to work she asked again, saying it would be a one off and she would really be grateful to once in her life a guy like me who had a large cock. Once again I stalled her, but now I feel guilty both ways.

She's asked to make a descission either way and let her know. Now I have that dilema. Do I give her what she obviously wants, or do I hold off and deny her, her sexual wish??