She was a grinder, she loved to press her pussy on hard things and grind her way to orgasm, and often would ride the corner of the vibrating washing m...achine in the basement, or the handle of the lawn mower, which was quite a sight for the neighbors. And this morning, as in many others, she was grinding her son's face in her hairy maw, grinding her clit against his mouth, his teeth, his gums, grinding her wet, nasty, cheesy sex all over his face. "Oh, yeah, baby, that's it, that's it ... unh!!. My hands found around back, grasping lightly her ass cheeks. My hands were big enough to encompass each cheek fully. While my hands massaged, my mouth breathed warm air on her inner thighs and then up towards her mound. Tina was breathing harder now and trembling even more than before. “Tina, I want you to lay down on the couch now and spread your legs for me.” With her panties still on, I watched as she lay down on the couch. I took off the condom that was continuing to droop lower, still. And that made him feel better.By the time the rest of the day had passed, Bob was a wreck. Riley acted completely normal, in terms of how she interacted with Curtis. And her behavior towards Bob, himself, was almost normal too. In the past, she often put her arms around him, and got several long, steamy kisses. She was a very physical woman, in terms of her behavior towards her lover. But that was missing on this day. She didn't try to keep away from Bob ... but she didn't seek him out for. “Tell me when you’re gonna cum, baby. I wanna cum with you.”Before I knew it, I felt that familiar wave rising from deep inside. My body stiffened as it got closer.“Almost there, Lida.”“That’s it, baby, cum for me.”Lida increased the pace of her licking and I did the same. I could feel her body tensing up as well; feel her walls gripping the dildo. Then the orgasm hit and my hips bucked against her mouth, my legs squeezing her head. I heard her moan as her own orgasm exploded. We lay there,.