Taboo - Submission. Wife Sharing, #7

After sub wife, Suzi had assisted her husband and Master in the seduction of her little step sister, Debbie, she now helps him train her properly as a submissive. Extract:Debbie woke to find her wrists tied above her head and bound to the headboard. "Good morning my pet, " I greeted her, lightly stroking her bare stomach. "Are you ready to play some more?""Christ, " she said. "You're bloody insatiable! Where's Suzi?""Suzi's gone out for a while to give us chance to get to know each other better." I paused for a while, teasing her nipples with the back of my hand.
"Some time ago, I trained my wife properly as a submissive. You saw the product of that training last night. The fact is, Suzi has never been happier and if you're willing, I'd like to do the same with you.""Do you mean you're going to force me to do whatever you want you dirty old man?" Debbie asked with a naughty twinkle in her eye."Not really. I won't be forcing you to do anything because I'm going to give you two safe words.
If you say 'amber', I'll back off a little and give you more time. If you say 'red', I'll stop completely and that will be the end of your training. How does that sound?""And what if I can't say anything because you've filled my mouth with your big cock or something made of rubber, " asked Debbie innocently."Very perceptive! Five blinks of your eyes or five taps of your hand will mean you need to say a safe word and I'll allow you to do so.""Right then, " said an eager Debbie.
"What are we waiting for?"