There have been two men just bowling at the competition,
one of them turns his attention to a very fine lady who was their competition,
after they reached oh a very well game, around 235, she took off her ball cap and bowed.
"Good game, but you know like in this game, welled oiled lanes and bowling balls. I kind of wonder if you would treat me right...?"
"Well miss thank you, but I must decline besides my husband is standing next to me. We have been married for about a year."
"O"Well nice to know you have someone but was going to treat you well for such an excellent game.. That is all nothing serious. My husband is in the next lane."
So after a bit of badgering, basically a bit turns out they where siblings, both the lady and one of the other team mates.
Sorry my jokes are bad.