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Lady Gaga stopped by for an interview with Howard Stern at Sirius XM studios in NYC ... and no topic was off limits.

When Stern asked Gaga about her love life, she told him:

    "What boyfriend? ... Who's Jean Luc? It's hard to find a boyfriend who doesn't mind a good tuck."


Way to keep those rumors swirling, Gaga! As for all the money she's made while on tour, Lady G tells Stern:

    "I really don't give a f**k about money at all. The Monster Ball was really expensive and the next show will be really expensive and I will pay for it."


Read what Gaga said about the last time she had sex ... after the jump.