SANTA ANA (CBS) — An Orange County father has pleaded guilty to stalking a 13-year-old girl on transit buses.

Deputies say Martin Aguilar, 44, followed his victim onto an OCTA bus in Mission Viejo every morning for the past six weeks.

Aguilar, who has a 13-year-old daughter of his own, reportedly asked her personal questions, told her she is beautiful, gave her a rose, and even became angry when he believed she was texting a boyfriend.

The victim, who says Aguilar would follow her when she changed seats, told her mother.

The woman called the Sheriff’s Department and it only took undercover deputies two days to arrest Aguilar on suspicion of child annoyance.