"You and I, and Sharon all know that I am not done. You just won't be here to watch the next time. Consider it a treat from me," Bob taunted as he left.
By the time we had turned our attention back to Sharon, she had gotten off the bed and was in the bathroom.
Del called out, "Come on Ben, we'll go get a drink."
We went to a bar not too far from Del's house.
We talked about Sharon and her infidelities with or without Del. Her infatuation with Bob and her overwhelming desire to humiliate him by giving Bob anything he wanted and anywhere. He filled me in on a couple of events in their adventures.
After Del discovered that Sharon was cheating on him with multiple men, Del suggested that it might be a turn-on for her to have him photograph her with her lovers. She managed to convince almost all of them to let Del watch and take pictures. That went on for about a year and resulted in the pictures he had sent me.
Their first adventure in swinging was a disaster. A guy Sharon was flirting with at a bar agreed to come home with them. All was going well, she sucked his cock, he fingered her pussy, and she wanted him to fuck her, which he did. However, about halfway through their sex, he wanted to change position and continue fucking her doggy style.
When she was on her knees, he got behind her, but instead of fucking her cunt, he slipped his cock into Sharon's ass. She protested, telling him to stop, he grasped her hips and refused to pull out. He fucked her hard, she protested, but he wouldn't stop.
Del stepped in and told him to stop, but he refused until he came in Sharon's ass. Del made him leave, but Sharon swore off anal after that.
Bob came around several months later. They were at a sex party for couples, and Bob was the center of attention. All the women were enthralled by the size of his cock. Most only hefted it or wrapped their hand around his shaft. None of the women dared to try to take it in their pussy.
Later in the evening, after Sharon had fucked 3 times, and had a few too many drinks, she met Bob in one of the public rooms.
She was nude, and Bob commented on her tits. She complimented him on his cock.
All this led to Sharon and Bob in the Sex Room with a crowd milling around eager to watch. Word spread quickly that some woman was in there with Bob so more people followed.
To make a long story short, he pushed the head of his cock only into her slowly, and immediately she began climaxing. After a few minutes, and to the amazement of the folks watching, Bob pushed his massive cock into Sharon. Once he hit bottom, she began climaxing again, clenching tightly around his thick cock with her cunt.
Sharon was immediately becoming infatuated by his cock and couldn't stop telling Del about the way it stimulated her clit with each thrust. Its thickness, length, and wide cock head filled her cunt.
So, as Del related the story, it was about a couple of weeks or so later when Sharon convinced him to let her call Bob and invite him over. Sessions with Bob rarely included Del, but he got to watch.
As Sharon became more and more Bob's cock slut, the sessions became fewer and fewer, but Del knew she couldn't do without the cock for too long. What she was doing was to invite Bob over on the nights' Del was busy at work, or she simply stopped off at Bob's place on the way home from work.
For several months, Bob was gone by the time Del got home. One time the event ended sooner than expected, so when Del got home Bob's car was in the driveway. He heard a noise upstairs but stayed downstairs until he heard Bob leave. He went upstairs and found Sharon laying on the bed still breathing hard, her legs spread and Bob's cum flowing onto the bed.
He knew then that Sharon's cunt belonged to Bob when she didn't even attempt to deny what had happened.
When we were on the way back to Del's after our drinks, he told me he was going to sleep in the guest room because it would be too awkward to see her because of what we had witnessed. He tried several times to apologize for what had happened, but I assured him that it wasn't a concern. That I knew what he and Sharon were into and I didn't think any less of them.
"You go upstairs, and sleep with Sharon," he said. "You can fill me in in the morning."