He didn't surprise me when he said "This is what you need, not a finger or dildo". as he pushed his crouch closer to me in a humping motion but incon...picuiously. I couldn't help but to watch his motion. I guess he saw my eyes at his private area. "You need THIS" he said as he pushed his swelling cock hidden in his trousers but becoming obvious against my shoulder and arm. No one seen what he was doing, I jokenly said "STOP". But i knew he wouldn't stop there. He took his hand and traced his. Sandy took my hand and placed it deliberately on her breast. Before I could do anything else, she moved it slightly and I felt the nipple harden through the thin material. ‘Don’t stop’ she whispered as she took her hand away. I thought I had died and gone to heaven with the biggest hard-on of my life. Then she eased her arm out of the shoulder strap, lifted my hand and replaced it on her now bare breast, saying ‘There now isn’t that better?’ That made my erection even bigger. When we turned. It tasted of nectar to me. "Such a good little dick sucker. You make me feel so good Billy. Now lick the head of it. Flick it with your tongue" I did it and loved how it bounced back and forth. That gorgeous big purple head, slick with my spit and precum bounced back and forth in front of me as I licked at it. I grabbed it by the base and guided it back to my mouth. I felt empty when it was not filling me. I began to suck it harder and faster. He began to match my motion with his hips and. Where she said sternly 'I've been waiting for you to come home all day.' She approached the bed and with a quick movement pulled the quilt off leaving me lying naked on the bed. Beth then reached under our bed and took out some of her old stockings and proceeded to tie my wrists and ankles to the corners of the bed. Beth was quite expert at this as she managed to tie the restraints so that I had a little movement but they were tight enough that I couldn't move much, or escape. When she had.