Trust me, she isn't receiving sex. She's receiving a false companionship, and as someone who's grandpa also fell for the same scam with a younger woman (He never received anything sexual from her, always excuses) It's the loneliness that keeps them hanging onto the leech. It's actually VERY sad and very difficult to deal with. I'm so sorry OP, It's almost impossible to reason with them.

I don't trust you on this one. I'm sorry your grandpa got screwed (figuratively speaking only), but the whole sugar daddy/momma thing wouldn't exist if they got consistently cock-blocked by their "baby." It's highly likely that the baby would grind through the sex as a means to an end, a few might actually like it, but I can't imagine one could completely avoid it.