Kiss star Simmons 'in sex tape'

A sex tape featuring Kiss rocker Gene Simmons has reportedly leaked online.

According to AVN, a video featuring Simmons sleeping with an Austrian energy drink spokesmodel called Elsa is available to buy on the internet.

The 58-year-old reportedly met Elsa when he was asked to work on the promotion of the energy drink.

Simmons, who claims to have slept with nearly 5,000 women, has lived with movie star Shannon Tweed since 1985, but they have never married.