The next week Greg got drunk, it was Valentines day, and decided to play with the dildo given he was absent a partner. Drunkenly, the best of times for experiments, he started to run the dildo over the edge of his lips. It felt warm in his hand then the head of the dildo entered his mouth. Todd was back and he was on her knees in her female body.
"I don't know Todd, it sounds dirty. Your thing in my mouth, can't you use a condom?"
"We had both had our tests, we are clean. Even if you break off our engagement tomorrow I want you to learn this skill."
"AH!" Greg shouted.
He pulled the dildo clear of his mouth, it must have some magic that made it work when it was inside him, like his ass last time. Reluctantly he put it in again. The shaft went out to the back of his throat as he was turned into his female doppelganger. Greg was on her knees as Todd squirmed on his couch, Greg ticked his balls as Todd's strong hand grabbed Greg's head and long blond locks. Time had elapsed between the first 'memory' and this 'memory'. Her reluctance to give a blow job had turned to pleasure.
Her bare breasts swung freely, as she was nude, with her nipples hardening. She loved watching Todd squirm as he tried not to blow his load. She lubed his shaft with her saliva and felt the muscles bulging and straining for release. Finally he blew his load, a warm sticky fluid filled her mouth.
"OMG, fuck-" he panted any harder and you'd kill me!"
The male part of her mind reeled as she removed his dick.
Greg spat the fluid out of his mouth. Todd vanished and so did Greg's female form. She suddenly shot down in height from 5’9 to a male height of 5’7. She shuffled awkwardly around as her body proportions shifted, bigger feet and hands, thicker arms and legs, getting used to the large dick swinging under her groin. Her breasts shrank within her body as they formed pectoral muscles, boobs becoming lean muscle. Her abs followed suit, a six pack visibly on her ebony skin.
Perhaps more dramatic were the changes to her head, as an Adam’s apple made an appearance on her neck, and her face started to shift to take on a more masculine appearance. Her face remained clean shaven, with the exception of a thick and bushy mustache above her lips, which were no longer made up with lipstick. The rest of the makeup on her face had also entirely vanished. The hair on her head started to furl inwards as the individual strands grew kinkier and lost the dye that was in them, forming a neat comb over.