When it comes to relationships, most partners will admit to bending the truth slightly or telling the odd white lie.
However, as these women prove, untruths can sometimes escalate to far more serious deceptions.
Users of the secret sharing app Whisper have revealed the worst lies they have told their boyfriends during their relationship and some of them are downright sinister.
For many of the women submitting confessions on the anonymous site, the main thing they withheld from their boyfriend was information about previous lovers.