When a man forces his still flacid (see limpdick, wet noodle) penis into a womans vagina through sheer determination.
Sam got so drunk that he ended up soft-serving Jami last night for like two hours until she finally had had enough and pushed him off.
She just wanted the D-piece, she didn't know she'd be getting the soft-serve.
when someone gets pleasure by either shitting in someones mouth or recieving shit in thier own mouth during sex.
Give me a soft-serve in my mouth.