Time to pump..... iron?

Standing in front of his mirror again the reflection perfectly matched the competition body of Melissa, entirely leaned out.... Spider web veins transversed her arms, legs, abs and breasts. Lats descended under Fred's arms, bulging like wings. Fred flexed her quads and the striations of each muscle fiber were visible. Their masses covered up most of her pussy, except the finger length clitoris extended out, with its own penis like flange. Delts and traps rose from her shoulders and neck. The six pack rose and faded with each breath. Gumdrop nipples topped 40D cantaloupe breasts. Her face was chiseled and lean.

Fred wanted to hit the gym and see how much she could lift. Just moving her rippled bulk of was an exhilarating sensation. She could only imagine the adrenaline of squats, presses and curls.

Having retracted her cock and balls, Fred felt a full sensation in the vascular abs. The organs were in there and she needed to constantly flex his pussy muscles to maintain it. She didn't know how long she could hold it, so it was time for a stress test. Fred brought his phone in the bathroom and started playing more clips of female bodybuilders playing with their giant labia and clits. Fred grabbed his electric toothbrush, turned it on and rubbed the flat plastic back along his own monster clit. The sensation drove him to the edge, but the whole time he focused on keeping his cock inside. After 30 seconds of intense vibration his buried cock came with intense ****, shooting a stream of cum out his muscular pussy, shattering a tile on the floor below. She could keep the cock buried in public, but if he came, he might shred his clothes!

Clothes.... that was her next hurdle. Digging thru her "male" clothes, just something she could work out in. Fred needed to lift, and didn't want to detour to shop.

Flipping through her closet she pulled out a white tshirt and a pair of running shorts, commando. Why not show these the girls off a little, Fred thought. Of course she didn't have a bra so Fred's enormous breasts nipples strained against the fabric. The cuffs of the sleeves strained against the massive arms.

Arriving at the gym, Fred's old pass showed his picture on it, but the guy at the front desk was to distracted by Fred's tits to even notice.

Going straight to the squat rack, Fred picked up the 100 plates with a single hand, slapping two of them on each side of the bar. Going thru the squat sets..dipping her ass to the ground each time, her giant quads strained and pushed. The bar bent and flexed over her massive shoulders. New veins popped up, the diameter of a garden hose.

Heading to the bench press, Fred put four 45s on each side and rattled off 25 reps, her breasts seeming to grow and inflate with each press.

Moving on to curls, Fred grabbed the 100 dumbells and rattled of curls with ease, her biceps growing until she could barely close her arm.

"Probably enough for the day." Fred said out loud. It was close to closing time anyway, and the building was clearing out.

Fred saw a woman in a bra top and yoga pants head for the showers. She had been spying on Fred from the nearby treadmills and Fred had been checking her out in return. She was a red head, with long legs, tight abs and ass, and boob flesh spilling out top, bottom and sides of the undersized bra.

All that lifting had really turned Fred on. Arriving at her locker, he saw the red head walking away naked toward the showers, her lilly white ass cheeks swaying with temptation. Stopping at the corner to the bathroom she looked back briefly at Fred, and then kept going.

Fred hurriedly stripped down, barely able to contain his futa cock any more. Speed walking to the shower stalls, she saw the redhead disappear behind a curtain. The lockerroom was empty except for them.

Fred slid in the stall behind the redhead and grabbed her breasts. Shrieking with joy the redhead ground her ass into Fred's rock hard pelvis. Fred's body morphed without his control into another mutation. Holding the redhead tight against his clit, he could feel it grow and stretch, inch by inch until it hit the woman's rectum. Cupping a hand over her mouth as she protested, he pushed the new clit cock into her ass and started pistoning. Fred felt it go deep in her bowels. Pistoning in and out he saw it was at least a foot long.

The futa cock joined the act next. Fred felt it crawl limp out of his pussy and slap onto the floor, three feet long. The balls descended next with a slupring sound, swinging down between his legs. The second more massive erection rose and caught the redhead square in the pussy. Now deep in both of her orfices, Fred lifted her off the ground and pounded her in mid air. The futa cock hit her cervix and pushed into the reheads womb.

Cum rose in both the cocks and exploded into the airborne woman and out her overburdened holes.

Setting her back down, Fred collapsed exhausted on the shower seat. She turned and faced Fred, with a look of pain and confusion, her stomach cramping.

The virus had infected the redhead now.... Fred watched as her breasts ballooned and muscles swelled. The redheads clit grew down and rose out to match Fred's veiny monster. Aware of her new found hyper sexuality, the redhead spoke.

"I'm Rose. Thanks for the fuck. Time for some of your own medicine, I think."

With one swift motion the redhead thrust her new cock into Fred's mouth and pinned his head against the shower stall.