Rubbery injection (Patreon)

The latex pit took its sweet time, latched firmly on Sarkin's shaft and with soft yet constant pressure. The pressure would build up over a minute or so before vanishing suddenly followed by a rush of cold fluid through his entire member, as if he felt himself pissing in reverse, ending with a faint sting in his groin as the fluid was injected into his sack, expanding it ever so slightly. It kept on pumping his defenseless nuts full of the rubbery liquid bit by bit. Having plenty of time to stretch bigger and bigger, allowing for more substance to be forced inside, prolonging the entire process until his nuts could reach the highest limit.
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