Top Definition
Nuclear sex is when a male orgasms before reaching the vagina for penetration.
Female 1: "So how was it last night; was he good?"
Female 2: "We had nuclear sex."
Female 1: "Ohhh.."
#premature ejaculation #soft #sex #disappointing #too soon
by Natehcks July 03, 2014
5 Words related to nuclear sex
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