Me and mother in law

I just love my mother in law, she makes me very horny. Since our divorce, things are getting better between me and m-i-l. I'm planning to fuck her the next opportunity we gonna get. We will be alone for a few days as my ex wife and s-i-l's are going away together for a weekend. I'm now already trying my luck my "accidentally" bumping into my mil, touching or rubbing my cock against her big ass. Or when she passes me the remote or her phone, I will touch and stroke her hand then take the item. When we chat, I always listen attentively and make sweet conversation, like when we watch tv together and there is a sex scene, I comment on that. Then we discuss it joking about it. Oh, I can't wait to be alone with her. I know that she will be sleeping in the next room to mine and not in her own. Now that it's summer, she wears silky short pajama dresses and during the night always turn on her back and bends her legs up, then the duvet slides to her feet, exposing thighs open, damn I go crazy for her thighs. The bathroom light will enlight that room enough for me to perv and have good wank, watching her sleep. I have an idea when she'll be getting up and going to the toilet, which is opposite my room. I'll just lie there having a wank, making sure she gets a good view. I've got a sneaky plan up my sleeve this time...