Filling my rubber (latex) shorts with shaving foam and some greek yoghurt. The shorts were lubed first for extra slickness. The foam makes the shorts bulge nicely, the cold yoghurt causes a few shocked gasps.
A bit of jiggling and writhing gets everything in to place.
Want to see more of the session that features pies, dream pudding, masturbation (a lovely wank) and cum? Then let me know!