After more than a few minutes of this Lisa moves off me and moves for her box of toys again. She looks at me as she pulls something out. Right now you...ve done my arse I'm doing yours! Well I'm not going argue with that besides there's something very sexy about being done up the arse by a woman with that roll reversal. She walks towards me with a feeldoe dildo she inserts the small end into herself and looks at herself now with a big rubber cock standing out in front of her. On your knees boy. .. ahh... my God! It’s a dream cum true!”My moans and screams were the loudest I ever had. Her tongue traveled through my entire pussy, bringing me the best pleasure I could expect from lesbian sex. Lena lapped and lapped me and smiled noticing how much I was getting hooked on girlsex. And, of course, Donald too, as he was jerking off himself while watching.“Donnie, honey, why don’t you come over and have some fun with Lena?”“Are you sure? I don’ want to interrupt your moment with her...”“I bet. Optimizing sensation everywhere.Ben is rolling, twirling, and swirling his tongue almost continually. He is creating a barrage of sensation. All the while providing increased lubrication to the head and shaft of my mans erection. Ben is hollowing his cheeks, like slurping a lollipop. Sucking the air out of his mouth to create suction. More pressure and sensation.He is letting my man’s response dictate the amount of suction. Not too hard, not too soft.Ben has discovered my man loves to have his. Algorithms created to help match potential partners from their answers to the surveys and ‘sex tests’ offered makes the mind swirl. There is substantial work ahead. The Institute making this change, turning on a dime to change its focus is mind-boggling. All from a mild suggestion Emma made at first in an off-handed manner. But isn’t that how the most significant ideas and innovations often start?The new center for all this will be near the current center where Donald and Emma work. .