If you view one of (U.S.A.) Chuck Vincent's later explicit movies (I'll suggest "Sex Drive" [1984].), he included scenes where you viewed the in-and-out on the other side of a glass surface. The scene ended with the male pulling out and spurting on the glass surface. That would be a scintillating way to end a squished scene like what is here being previewed..You can guess what happens next.
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