Review is the same from version titled 3-Way Split and version titled Double Cross (about 1.5 minutes longer) and the version titled Blue Jeans & Dynamite (about 5.5 minutes longer).
No nudity.
Tony and Annie cuddle in bed, covered by sheets.
Luis and Tania are in bed, apparently nude, but discretely covered.
Tony walks through a room where a couple is having sex, it is dark, they are wearing underwear. Movement and sounds.
(note: Double Cross has a few extended scenes compared to 3-Way Split. The music is a higher pitch compared to Blue Jeans & Dynamite, so I assume the first two are from a PAL source, the latter is NTSC.)