bulge press
The act of pressing one's bulge against something. If it's against an object use with humping, if it's another person use with dry humping and bulge to ass.
Against object examples: Danbooru post #4716052 Danbooru post #4656536
Against person examples: Danbooru post #4092731 Danbooru post #4192125
See also
This tag implicates bulge (learn more).
The following tags implicate this tag: bulges_touching (learn more).