Sext fail helps man bust cheating girlfriend

What began as a pleasant text exchange soon revealed one woman's cheating ways. Photo / Reddit

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A man who busted his cheating girlfriend in a text exchange has captivated the internet with his clever detective skills.

The woman was caught out after sending suggestive selfies to her boyfriend, who became suspicious when he spotted something unusual in the background.

Shared to Reddit, the messages reveal a woman named "Jackie" sending topless pictures to her then boyfriend "Liam" from a hotel room in Atlanta where she was staying for a business trip.

But rather than being pleased by the messages, Liam becomes concerned when he spots a bag he knows isn't hers in the background of one of her images.

Deciding to call her bluff, he asks if she's alone and what her room number is.

Jackie replies: "1422. Not this again, just call my room number if you don't believe me."

Liam's suspicious message exchange. Photo / Reddit

When he calls the hotel, he is told there is no Jackie in room 1422. Instead, he learns the room is booked under the name "Tom" - his girlfriend's boss.

Enraged by his discovery, Liam ends the exchange by saying: "All your s*** will be waiting outside for you in trash bags when you get back."

Liam reveals how he worked out his girlfriend wasn't alone. Photo / Reddit

Since being posted to Reddit the iMessages have gone viral.