Text from his Furaffinity page:
1. Sophie and Annie had been friends since pre-school. It had been during puberty that they had discovered a shared interest in transformations, even fantasizing about getting changed themselves. Now that they were adults and able to do whatever they liked, they finally decided to live their dream and get altered. What could have been better to start with than to seal their friendhsip forever by sharing one body.
Only two days later did they agree to go for one more alteration, exchanging their genitalia for a male set. It satisfied them for a while. Despite their extreme impact, their changes were still minor enough to live relatively normal lives. Nonetheless neither Sophie, nor Annie, could deny the erection they had every time they passed by an alchemist's shop. Maybe they were not done yet after all...
2. It was only a matter of time before Sophie and Annie would buy another potion to go all the way and change into an entirely new form. In order to make things more exciting, they decided to buy two different potions and drink them at the same time. The result left them limbless, entirely male, with anuses for mouths and extremely long necks. They were so aroused by their new look that they came without having to even tough their enlarged cock.
The two former women adjusted very quickly to their new body. Despite their lack of limbs, they found a way to get around. They learned to use their serpentine necks as legs. The way it emphasizes their butt and genitalia often causes them to go erect, no matter if at home or in public.
A few weeks after their final transformation the two decided to have their gender officially registered as male and adopt a shared name and identity - Cocksucker. Cocksucker gave up his old job and started working in a brothel, the perfect solution to satisfy his boundless libido. Its not uncommon for him to serve up to three customers at the same time.