Your pensive musings were suddenly interrupted - you felt a strange tugging and groaning in your gut, you look down.
Your former ballsack was... rumbling... You quickly touch it. You can feel your testicles already turning into a thick jelly.
"Mia, something's wrong..." You say.
Mia looked at you, a little worry in her eyes. You were too distracted by your former testicles having been turned completely into some kind of thick liquid in your former sack.
It was strange... you didn't feel concerned about your former testicle's transformation. Perhaps this was the work of your new Girl Juice balls. You look up at Mia, you suddenly felt the strongest urge for her to suck the liquefied testicles out of you. Mia seemed to understand, she grinned.
"Are you sure?" She asked, "Who knows what could happen if I take all that essence..."
You nod.
Mia begins to, again, suck your dick. You felt an intense arousal your distracted mind hadn't felt just before. Your dick strained hard. Mia expertly sucked and teased your cock head and shaft. Suddenly, she started to rub an area just under your ballsack(s)... the pleasure from that was intense.
Mia's deft work brought you to a quick orgasm, you warned her but she stayed latched - eager to swallow your load. It was explosive and wonderful. Mia's eyes bulged as she took in the most cum she had ever swallowed. Your old ballsack retreated as the cum flowed out of it.
You collapsed back. The pleasure was so intense you passed out as Mia finished licking and sucking all the remaining cum she missed.
You wake up half an hour later...