Genesis 38:17

And he said, I will send [thee] a kid from the flock
Either from Timnath, where his flock was shearing, or rather from Adullam, where he lived; since it is probable he was now returning from Timnath, where he had been feasting and making merry with his shearers, and so in a disposition to commit such an action: and she said, wilt thou give [me] a pledge, till thou send [it]?
she made no objection to the hire or present, only required a pawn, or security for it till she had it; and this was her view indeed in asking an hire that she might have something to produce, should she prove with child by him, to convince him by whom it was.