Bikini Bait Daphne
"Scooby Doo! Mystery Incorporated Episode 4"
In this we have a crab a giant Man-Crab hiding somewhere on the beach. And he's kidnapping the girls playing for the volleyball tournament.
Realizing this, Fred thinks since Daphne used to play volleyball, they could use her as bait to lour him into a trap. Especially since he thought the Man-Crab wouldn't be able to resist her. She like hearing that from him, but still found it disturbing.
Regardless, she agreed to do it. So later we her getting out of the Mystery Machine in a rather revealing purple bikini. One that really showed off her cleavage.
When Velma saw her in it, she impressed and asked who was she trying to impress. Daphne claims it very old bikini and she just wanted to do a good job. Before asking Velma if she could put sun lotion on, because Fred likes shiny things and she wants him to look at her instead of traps.
The girls continue to have a conversation until the Man-Crab showed up and started chasing Daphne. Unfortunately She gets caught, but we see her again later and the gang finishes up the mystery, while she's still in the bikini.