>>156261 - Find a female friend who would be ok for a threesome with your guy AND your guy agrees to this
2 - Do the threesomes
3 - Gradually become the cuckquean in the threesomes as the guy starts taking care of the other girl more in bed
4 - Make sure you're doing this with both eyes open because problems are around the corner and need to be managed swiftly (just wait until you see her kissing him passionately and you'll understand)
5 - Communicate, communicate, communicate