Jeff felt his cock harden at watching his sister fuck Gabriel. He decided to take a seat on her computer chair, he whipped out his cock from his pants and began to stroke it while watching the show.
------------------------------------------Gabriel's POV----------------------------------------------
Gabriel couldn't believe how good her body felt. She remembered having married Janice at some point and then her friends merging with him, turning him into the sexy woman getting fucked, and Janice growing a large horse cock. She couldn't remember the time frame for all of it happening and nor did she cared, all she cared for was that she felt better then she was as a guy.
Gabriel felt her body shift as her pussy seemed to grow large and she felt Janice grow two more cocks. Gabriel felt she now had three vaginal openings in her cunt, she also felt that Janice's two new cocks were different. Gabriel new what each cock was somehow. Janice had grown a demon cock and a dragon cock. Gabriel continued to ride Janice's cocks, driving herself crazy with how good it felt.
Gabriel camed 3 times and still didn't feel fully satisfied to stop fucking. Gabriel felt her body change again. She grew larger, her ass ballooning out, her hips widening, her waist pulling in, shrinking, giving her a ridiculous hour glass figure, her thighs thicken, and she grew more muscular. She then felt her wife Janice change under her, growing larger as well and her cocks lengthening.
Gabriel and Janice were now 12 feet tall and have very toned swimmer bodies. Janice's cocks were now 6 foot 8 inches long. Gabriel felt her body change once more she grew four more tits, giving her a total of six and six more arms giving her eight. Gabriel felt her self become more dominant and knew her wife was also a dom, but when with each other they act like very loving switches. Gabriel began to ride Janice's cocks harder as a result.
----------------------------------------------Jeff's POV---------------------------------------------
as Jeff came a second time at watching his sister change her self and her new wife, he saw that every time Gabriel came after the changes that her tits grew one cup size and had went from E-cups to EE-cups, and what's more is that all six tits on her were the same size. Jeff continued watching as Gabriel's tits grew, going from EE to F, then to FF, G, GG, H, HH, I, and II-Cups stopping their as apparently that was all Gabriel could take as she orgasmed very hard, making it clear she was tired out for now.