No - Molly has never really shown that much interest in such things, and neither did Polly (the other cat we had who died last year). I think that may well be because we had them spayed at an early age.
Daisy (the younger of my two dogs, who died in 2005) was far more inclined to do such things, because we'd left her bits intact until we could breed one litter of puppies from her (she once ran off and "made friends" with a male dog of a different breed when she was in heat, so we had to give her some medicine to stop her getting pregnant. For one thing, we weren't ready for her to be pregnant, and for another, mongrel pups would have been much harder to sell).
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Why so serious?