Both Adam and Helen enjoy the aftermath.

Bob(Adam) and Priti(Helen) stayed in the same position, fully 'joined together', each of them basking in their own afterglow.
Adam looked at Helen, and Helen looked back at him. As their faces were so close, Adam felt himself absorbed by Priti's features, to her thin eyebrows, her almond eyes, her caramel-coloured lips from where a layer of perfect white teeth could be seen. She was really pretty... and to think his girlfriend was the one looking at him behind those enticing dark pupils...

Without so much of a thought, Adam closed in, trying to give her a mouth kiss. But Helen reacted immediately, stopping him with an open hand. He opened his eyes in surprise.

"Uh-uh" She shook her head with a raised eyebrow. "You'll have to excuse me, but I don't think I want to kiss thi, uh... this dude. Not now at least."

Adam suddenly remembered whose body he was possessing and immediately jolted back.

"Ah, sorry! I didn't intend to... Uh-I just forgot for a second."

After apologizing, he slowly pulled back. And the vision of Bob's softening manhood sprouting from Priti's pumped vagina made Adam remember that time he watched a documentary of a dude trying to take a python snake out of her burrow by pulling her tail with both hands.

With a sounding *PLOP, his heavy shaft finally lost grip and fell down, immediately accompanied by a cascade of thick white goo sprouting from Priti's gaping hole.

Both Adam and Helen looked at the same place with bamboozled faces, both finally realizing what they had been doing, and the consequences of such actions.

Helen used Priti's hand to caress her lower belly and laughed nervously.

"Adam, you doofus, you came way too damn much. Do you want to knock her up or what?" Helen asked him.

Adam looked very scared for a moment, and loudly swallowed saliva.

"Y-You are as much as gu-guilty as I am!" He exclaimed. But then he tried to recompose himself. "A-Also... what about the morning-after pill? That could prevent... you know."

Helen grabbed a decent chunk of the semen gushing out of her cunt and then raised her hand, turning the palm sideways so the pure-white goo could slide down. However, the substance was so thick that it was taking forever to move even an inch.

"Yeah, no." She stated. But then she added "I mean we can try, but... I really don't think the morning-after pill will be able to defeat this concentrated baby-making juice."

"A-Are you serious?!" Bob(Adam)'s shoulders dropped down.

"Yep yep! Turns out your huge balls might be as fertile as they look."

"You look very happy, huh?" Adam said in an accusatory tone.

"I'm just laughing because your body is seriously nuts!" She proclaimed, pointing at Bob's crotch. "You get it? 'Nuts'!"

"Uugh... just kill me..." Adam complained, and listening to Bob's lament as his own made him want to complain even more.

"Come on, don't be so down." Priti's bright voice tried to cheer him up. But then she added in a teasing tone. "You're gonna be a daddy after all, so you should be celebrating!"

"I'm not gonna-... uh." Adam wanted to retort, but then he stopped, looking at the woman's navel with his eyebrows furrowed.
Then, his eyes descended once more until he was staring down at Bob's naked body. Even though his dick was so large, his protruding belly only allowed him so see half of it.

This unattractive body wasn't what you'd call a 'ladies magnet'. He was just a humble security guard with no money or apparent sex-appeal. Ladies would unanimously turn their heads away if they ever saw him in swim shorts, least they stared long enough to notice his bulge.
Long story short, the rich and beautiful South-East Asian lady that Helen had possessed was by all means way out of Bob's league.
And yet, she was about to have Bob's child. Most likely without any recolection of how it happened or who was the father.

Those thoughts awakened something in Adam, and his host's body reacted to them by, once again, sending wave after wave of warm pressure down his crotch, making his brutish-looking penis to slowly perk up, getting longer and thicker.

"You have to be kidding me." Helen said, looking at Adam with a frown. "What are you, a horny monkey?"

"I'm sorry..." Adam apologized, feeling a little awkward.

"You know this makes no sense, right? This is just..."

"I'm sorry." He repeated, sheepishly.

"Stop apologizing and sit your fatass on the floor right there!"

"Wha-... What do you-"

"Just do it!" She raised Priti's voice, giving herself a level of authority that Adam couldn't help but obey.

"Y-Yes ma'am!" He immediately sat on the floor near their fallen clothes. Luckily, the floor wasn't very cold.

And the exact same instant his ass made contact with the ground, Helen jumped on top of him with a fierce expression on her burrowed face.

"Helen?!"

"You have been too 'cocky' lately, so it's time to put you in your place."

"Oh please, no more stupid puns..."

"Shut up! I'm roleplaying!"

"Roleplaying my ass..."

"I don't want your ass though, I want your dick."

"Stop that!"

Helen laughed at him and quickly took Bob's engorged dick between Priti's delicate hands.
She was actually quite tired by now, knowing very well that Priti's body was nearing her limit. But she was a firm believer of the fact that a good girlfriend had to be able to satisfy her boyfriend. And she really loved Adam, despite all the teasing.

So, with a decisive thrust, she **** her abused host's body to completely swallow Adam's borrowed dick.
This time, she would be the one in command.