CHULA VISTA – Imagine watching a man and woman making out on the ground in front of a store as you shopped with your teenager.

That’s exactly what happened to a store full of people in Chula Vista, but it got way more explicit. It eventually turned into a full-blown sexual escapade in front of minors.

10News anchor Itica Milanes got the tip and the video and talked to the woman who saw it all happen.

Christy Peterson said, “It was unbelievable.”

A man and woman, who Chula Vista police said had just met on the trolley, getting down and dirty in front of Christina’s dress shop. Peterson said the man and woman seemed oblivious to the fact that it was 3:30 p.m. and they were surrounded by people in a shopping strip mall.

“They were rolling on the ground making out and getting sexual,” she said.

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The two kept their clothes on for the first 15 minutes then Peterson overheard the man convince his new friend to take their relationship to the next level. He stripped off all his clothes; she kept her skirt on.

“Her legs were in the air and the guy was on top. We were so shocked our mouths were just opened,” Peterson said.

Security never showed up, so Peterson called police.