"Holy . . . fuck . . . that was . . . amazing . . ." Barbara whispered after a few minutes while burying Leo alive between her tits thanks to the size difference.
"Yeah . . . I can get used to this . . ." Leo agreed while his cum was starting to leak from the point where they were connected.
[Congratulations! You level up]
[Level 2 -> Level 3 80/100%]
[Normal sparring with Barbara no longer offers experience points.]
[New mutation unlocked!]
[Name: Patriarch Testicles]
[Category: Sexual]
[Description: An improvement in magnitude and power of the user's testicles, reaching the size of a pair of ping-pong balls and able to produce the equivalent of an alcohol shot of semen per ejaculation. The sperm does not only reach the peaks of what a human can have in terms of virility, but also some extra modifications to the whole reproductive system remove the user's refractory period.]
("Hey, wait a minute. How does combat information help to research better balls?") Leo asked Nigredo inside his mind while Barbara slowly pulled his cock out of her pussy and lay on her side, leaving her gaping hole oozing his thick seed.
("Gonna be honest, Patriarch Testicles comes from sex-related information that I got while watching from my cuck chair inside your brain. I need more data about combat in order to give you something more useful. In theory I could just have given you this mutation from the information that I got from you just fucking, but that is like . . . kind of messy having two bars of exp. Think of this more like a filler mutation as I prepare better stuff,") Nigredo explained as Leo's balls were slowly growing in size.
("Could I just buy an adrenaline shot to speed things up?") the redhead asked, thinking of a way to rush his power up; after all, he made a promise.
("Well, my mutation powers are more like a muscle; I need to feed them with the adrenaline that you get from sex and fighting. I exercise by doing upgrades, but exercise without a plan is a huge waste of time without proper planning, so that is where combat and sex information comes in.") The alien warned him that her mutations had a limit.
("Oh, so if I inject you with a lot of adrenaline . . . you would get fat and mess it up without the proper guidelines.") He added while his cock immediately got hard again, unable to relax while having that sweaty Amazonian goddess naked beside him.
"What the fuck, why did your balls grow bigger?" Barbara asked while clearly looking at Leo's testicles growing in front of her eyes.
"That was me. Remember that I can upgrade his body under the right conditions?" Nigredo purred, cupping those fat balls with her tentacles for a second.
"They look so fucking full; well, time to do something that I know you were dreaming of," she muttered, her gaze fixed on that erect cock as she slowly went for it, putting his manhood right between her tits.
"Oh, what?!" Leo yelled, getting his cock right between those massive and sweaty mountains.
"Don't play dumb with me; I know you were dying for me to do this with my tatas the moment you hit puberty," Barbara purred and winked at him, ready to give him his first titjob.
"You got me . . ." Leo groaned as Barbara let his cock stay wrapped between those warm breasts, so soft that they were almost like living dough. The weight alone was enough to make his eyes roll to the back of his head; she didn't even need to press her hands yet to make him feel like he was in heaven.
"Look at this fat fucking bitch breaker. No wonder why you need a bunch of girls to keep it calm; don't worry, your old friend will make sure to smother it between her milk tanks until it is completely drained," Barbara reassured him with an aggressive smile and spit right on the cum-soaked cockhead before finally pressing her hands on her tits.
"Fuuuuuuck, this is actually happening," Leo muttered while his cock throbbed like a beating heart. The spit was the perfect lubricant, making her tits slide easier around his shaft as she started moving. Up and down over and over.
Shlick, shlick, shlick.
"God, your balls are so fucking full already, like two fucking balloons about to burst. You are going to cover my tits with that nut slop? You pervert? You are lucky that I am into this shit," Barbara muttered while feeling those fat balls touching her sternum.
"Fuck yeah . . . you better put those fat udders to good use from now on. Especially when I get you pregnant and they make milk nonstop," Leo managed to tease back with a smile.
Barbara went faster, making sure to breathe over the cock to stimulate it with both her breasts and mouth. "Get me pregnant? You will need to drain those manly and musky balls constantly in my muscular cunt day and night. I hope you are ready for some extra exercise," she barked at him, smiling while the obscene wet sound of his cock trapped between her tits rumbled through the room.
"You are throbbing so hard; are you close? Good, cum for me and paint these tits with your fertile stud cum. Show me what those new balls can do," Barbara said with a grin, pressing her tits together even tighter and moving faster. That purple tip disappeared and reappeared between those mountains constantly.
The pressure built to the right point, and the familiar tingle at the tip of his cock warned Leo that he was about to explode. "Fuck!" He yelled, and cum burst out of his manhood like a firehose. Rope after rope of thick white seed rained down Barbara's tits and her neck and even struck her chin. One shot, two shots, three shots, four shots, until her entire chest was glazed with his spunk.
"There we go . . . fuck, you really like my honkers if you are cumming so hard," Barbara purred, impressed by the amount of pungent cum coming out of that fuckpole while still milking him. She made sure to squeeze every last drop until he was completely drained.
Leo collapsed, and his cock . . . was still rock hard.
Barbara smirked. "Oh? Look at that. Still hard? Well, round two, then three and then four . . . " she muttered and then kissed the tip of her king.
"Ok, but first! I tend to your wounds, and I call the police to get the monster corpse!" Leo ordered with no room for discussion. If they were going to fuck for hours, it would be on his terms.
"Tsk . . . fine . . . you are actually so cute when you worry about me," she purred and gave another kiss to that pillar of virility.