(BANG) –

Sean Penn was so excited by his first on screen gay kiss, he text ex-wife Madonna to boast.

The
actor locks lips with James Franco in new movie ‘Milk’ and felt
compelled to tell the pop superstar – who famously kissed Britney
Spears and Christina Aguilera.

James revealed: “After our kiss,
Sean texted Madonna and said, ‘I just popped my cherry kissing a guy. I
thought of you. I don’t know why.’ ”

In another steamy scene,
Sean is required to get passionate with his co-star Mark Martinez – who
plays cross-dressing disco singer Sylvester – and Mark says the kiss
seemed to last “forever”.

Mark revealed: “I’m performing, and
Sean comes onto the dance floor. He grabs me, and he just slaps the
biggest kiss on me. It felt like the kiss was forever. I’m like, ‘Is he
going to stop?’ I had to close my eyes, I just couldn’t believe it!”

In
the movie, Sean plays Harvey Milk, California’s first openly gay
elected official, who was assassinated by San Francisco Supervisor Dan
White.

Sean – who recently reconciled with second spouse Robyn
Wright Penn – married Madonna in 1985 but they divorced four years
later.

(C) BANG Media International