BIG Brother fans are convinced they’ve spotted two houseguests getting down and dirty during a dip in the pool.

Will-they-or-won’t-they pair Melody Morris and Drew Campbell were spotted acting suspiciously on the house live cam on Monday night, catching viewers’ eyes.

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In the clip, a pink bikini-clad Melody gets very close to Drew in the pool.

But his right hand moves suspiciously under the water for about a minute until he pulls both arms up to the pool deck

A clip of the live cam moment spread on Twitter, with Big Brother fans chiming in with their thoughts.

“Ummm is something going on here?” One viewer asked. “I ain’t crazy, right?”

“Where is his hand?” another questioned.

“Can someone explain?” a third said.

“Just watch her face, you can tell!” a fourth chimed in.

However, some fans demanded others get their minds out of the gutter

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“You all are too horny, nothing happened!” a fifth insisted.

It does not appear that any fellow houseguests reacted or even noticed the suspected subtle moves.

In another moment Monday night, Melody rubbed her feet suspiciously close to Drew’s crotch while cuddling on the couch.

“They’re getting bold,” a follower commented.

Melody and Drew have been flirting the entire season, though they’ve never been caught kissing on cameras.

As The U.S. Sun previously reported, Melody has an on-off boyfriend named Aaron back home, which could explain her under-the-radar behavior.

“Her getting on Big Brother happened at pretty much the worst time for them because it was just as things were getting back on track for them and they seemed to be getting serious,” a source said, adding that Aaron is growing frustrated back at home.

“He is angry at the situation, not necessarily at her but that he has to watch this play out in front of him and he has no control of it.”

Both Melody and Drew are safe from eviction this week, meaning fans will have more time to see if Melody and Drew finally kiss on camera.