A nun was walking into the convent, when the priest noticed she was gaining alittle weight. "Gaining alittle weight are we sister Susan?" he asked.
"Oh no father, just a little gas." sister Susan replied.
A month later the priest noticed that she had gained even more weight. "Gaining a little weight are we sister Susan?" he asked.
"Oh no father, just alittle gas." she replied.
A couple of months later the priest noticed sister Susan pushing a baby carriage around the convent.
He leaned over and looked in the carriage and said, "Cute little fart."