Sometimes your decisions are based on lust as opposed to logic and contrary to popular belief sometimes the former wins out.
Last night you needed to make a quick run across the street to your friendly neighborhood bodega in search of a quart of milk and some apple juice. A small purchase, but you made the mistake of paying for it with a $20 dollar bill and forgot to separate your money and you exposed a wad of bills when you went to the counter (you recently got paid).
As you were paying for your items you found yourself standing next to Brianna, who happens to be Luci's oldest daughter (you grew up with Luci).
You never really "hung out" with Luci, but she's always been cool with you and Luci was known for having one of the baddest bodies in the neighborhood. Apparently, this was just one of the many attributes Brianna inherited from her mother.
So, as your waiting to pay Brianna acknowledges you, but seems to be trying to "barter" with the Nelson who is working the counter that evening because she is short on cash. You're feeling charitable along with the fact that you just want to go home so you give Brianna a $20 so that she can pay for her items.
She thanks you and tells you that if you walk her home she can give you your money back since she has some cash in her dresser. You're trying to tell her that it's not a problem, but she insist that you follow her home.
You had a funny feeling, you know the kind of feeling you get when people want to borrow money from you and tell you that they are going to pay you back when they get their "Income tax return," and never pay you back.
When you get back to Brianna's place, you notice that you are all alone with her in the apartment and the next thing you know she is telling you about how her phone is going to be cut off unless she can give T-Mobile about $75 dollars and was wondering if you could help her out. Brianna then tells you that she may not be able to pay you back until the middle of February, but she will give you a "little something extra" in return for the loan.