Nick walked inside his private bathroom and turned towards his "bathtub". Nicks parents were both highly respected lawyers and were very successfull. Nick had a large bedroom with a private bathroom. He almost always took a bath in his own swimming pool he jokingly called his "bathtub".
Nick left the door unlocked, in case Lucas wanted to join him later on and took off his clothes and grabbed his swimming trunks.
A sudden beep coming from his room startled Nick a little. Then he remembered the Chronivac in his room. He quickly walked to his computer and switched the device off, still disappointed about his non-occuring transformation.
While he was making his way back towards his bathroom Lucas entered. "Oh you're going swimming in that 'tub' of yours?" he asked. "Yeah, you want to join?" Nick asked. "I would love to but I can't really use my training gear for pleasure swimming" Lucas said disappointed.
"If that is the only problem, we can ditch the trunks?" Nick suggested. Lucas gave a startled look. "Oh come on, it's not like we've never seen eachother naked before" Nick said annoyed. "Yeah I know, it's just still weird" Lucas said "Are you sure you're okay with that?" he added.
"If I wasn't I wouldn't have suggested it, now would I?" Nick said as he took off his trunks and walked into his private pool in his birthday suit.
Lucas quickly undressed and joined his friend.
They swam a for a bit and decided to just sit close to the edge of the pool.
Nick suddenly felt very uncomfortable, as his penis slowly went erect. Lucas noticed and grinned towards his friend. "You okay my dude?" Lucas asked grinningly.
Nick then felt a strange pulling sensation in his feet. He tried to move his toes only to discover that he couldn't. He tried lifting his feet above the water and he then made a discovering that made his hard skip a beat. Breaking the water was a skin coloured fluke of a fish tail.
Lucas' mouth dropped when he saw his friend's feet had turned into the fluke of a fish tail. "WHAT THE HELL?!" Lucas yelled, hoping his friend wouldn't notice that his penis was getting erect.
Nick stared in disbelieve and felt a rush of joy washing over him. The Chronivac did work after all!
He quickly looked at his friends face and noticed that his cock was also erect. "You like this don't you Lucas!" he said jokingly.
The changes to Nicks body weren't finished though as his legs slowly started to merge. Nick stroked his merging legs and his fluke and asked Lucas "Wanna feel it?". Lucas stretched his arm towards what used to be his best friends feet and stroked the fluke. It felt like he was stroking a smooth fish. As Lucas was stroking his fluke, blueish- greenscales started to appear on the end of his tail and were quickly spreading towards Nicks waist. "How is this even possible, you're a mermaid!" Lucas said.
As Nick was still changing he quickly explained the Chronivac and what it did. "That's awesome!" Lucas proclaimed.
Nick then felt a weird sensation in his groin. His legs were now completely merged together and formed a tail. His testicles had disappeared into his body, and his penis was growing longer. Nick couldn't help but smile at the sight of his growing cock and couldn't help but touch it.
A rush of pleasure bolted through his growing member, so he grabbed his penis in both hands and started thrusting.
Lucas was frozen completely in place and couldn't help but keep watching as his own penis was now rockhard. He noticed his friends chest was also expanding and growing what looked like B-Cup boobs.
Nick let go of his now changing penis and moved up towards his own boobs. Lucas moved closer completely mesmerized by his friends dick and tits.
Nicks penis was now a weird scaled pointy tower. Nick noticed his friends gaze was set on his penis and grabbed his friends hand and put it around his new fishy member. Lucas then started stroking Nick with one hand and himself with the other, while Nick pulled his friends head towards his boobs.
Lucas started sucking his friends tits, and both of their penises were starting to reach their climax. Nick took over from his friend and finished his own orgasm as his dick was pointed toward his best friend.
Lucas had just stopped suckling on Nicks hot tits and recieved a full load of greenish merman cum on his face as he came as well.
Nick looked down upon himself, a real life Merman and looked at his friends cumstained face.
Both were grinning from ear to ear.
Lucas licked some of his friends cum with his tongue and washed away the rest.
"You look so goddamn hot!" Lucas told Nick as they both sat in the pool.
"I know right!" Nick added as he looked upon himslef in disbelieve. "Can you actually swim with it?" Lucas asked
"I don't know really, I just want to look at it a bit more" Nick said as he rolled onto his stomach lifting his tail in the air and moving it around a bit.
"I think I can" he said as he turned around and started swimming.