Kara grabs your cock, while sharn grips you balls, which are now slightly to large for her to hold in one hand, despite her best efforts. “Yup, these things are definitely getting bigger, i think you’re right sis” giving your sack another squeeze. Kara continues stroke your cock in slow rhythmic strokes, each raise of her hand shifting her tits about in a hypnotic display, even with the pain from your balls, you’re Overcome with lust from the women in front of you.
“Alright this will confirm it once and for all” sharn isolates one of your enlarged nuts and squeezes down hard on, you feel like it’s about to burst, when it suddenly seems to shrink in her hand just as your cock expands in kara’s. “haha, I’ve not seen magic like this in while, whoever lived here last was one twisted bitch” she notices your confused expression, “in case your wondering this is a spell called a blue baller, it’s something of a defunct enlargement spell usually produced either by accident or for someone with particular interests in mind” you try to focus on Sharn whole she speaks, but your gaze keeps slipping to kara’s magnificent tits, and how close your dick is to being buried in those funbags.
And sharp squeeze bring your attention back, “now a normal enlargement spell just increases the size of a mans genitals, handy in your case, however a blue baller enlarges the penis until the man tries to cum, at which point some of his length is converted into cum which enlarges his testicles” Kara begins stoking faster on your cock while Sharn speaks, letting the tip of your dick slap against her breasts. The feeling is bliss, and you feel another load build, but just as your about release your dick shrinks pulling away from kara’s soft breasts and your balls swell, crushing themselves within sharn’s hand who looks down in surprise “Hah, that’s a new way to bust a guy, anyway squeezing the testicles forces them to revert the process however it leaves the man in a constant state of arousal in which his options are keep his new length but be unable to cum or try to cum until his dick shrinks to nothing, at which point these” she shakes your sack for effect, “will usually burst from the pressure, or from the attention of the partner who afflicted the man with the spell”. You blood runs cold at the thought of your balls exploding.
“Now their is a way around it, as we’ve demonstrated squeezing can **** your dick to grow again, but if you manage to apply the pressure just right, the man can keep a useable length and be able to achieve orgasm without his nuts exploding” Kara shakes your dick happily as her sister explains this final part. “So seems like the only way out for you and your manhood is to let us treat you to some two on one action and hope we don’t break anything in the process, call it a favour.” She says with a wink.
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