Lyric discussion by doortodoor 

Cover art for Save It For Later lyrics by English Beat, The

My guess is he's having sex with a prostitute or just a big slut

"Two dozen other dirty lovers" That one's pretty self explanitory

"Just Hold My hand while I come" Note the pause after come (cum). Looks like a double entendre to me.

"Sooner or later Your legs give way, you hit the ground" Too much sex and your legs are going to eventually give out