TWINS

My shop often come one man,he is about twenty year old,he has a little boy,because i like kids,we always have conversition about children.One day he asked me for a favor,he wanted to owe me some money,he said he would pay me on next thursday,and on that day,he came and bought a pack of cigrite.but he did mention about that money,so i asked him if he had money to pay,he said he didn't owe me money but his tiwins brother did.i was embarrassed,iwas appologied to him,he said that was ok,it was happened all the time,he paid for his brother.Later after that week,their mum came,we had chat about this,what you guess,she told me they weren't tiwins,they were triplet,two boys and one girl.