She wants to ride your cock

Once she reaches your couch, she pushes you onto it so you're seated. Continuing to take the lead, Diane climbs up onto her feet on the couch and uses one hand to slide your cock into her pussy whilst holding the back of the couch to keep herself stable. She slides the entire length of your shaft into her slutty pussy with ease, gripping it tight the whole way down. As it enters her, she lets out a soft gasp, astonished at how well it fills up her greedy hole.

With your cock now inside her she starts slow, grinding on it and shifting it around inside her pussy. You can feel the tip of your cock pressing against her cervix and as she grinds on you, your cock pushes around her insides, affording her a great deal of pleasure.

"Oh fuck, you feel so good inside of me. This is the best cock I've ever fucked."

You let out a gasp of pleasure as her dirty talk turns you on even more.

"I can't believe this is happening." You softly whisper.

"It feels so wrong. I'm your girlfriend's mother. You like fucking your girlfriend's mum big boy?"

"Ahhh fuck yes I do." You reply.

"I've wanted to fuck you ever since I laid eyes on you. Shame Tracy got in the way until now. She can never know about this." She admits.

"It's our dirty secret now." You reply.

Following this exchange of dirty talk, Diane starts bouncing up and down on your cock. She's still fully in control, using her legs to jump up and down on your cock allowing you to just sit back and enjoy the show. Her hefty tits swing up and down with each bounce, completely absorbing your attention.