In the first incident, he is alleged to have exposed himself to a 13-year-old girl around 6.45pm on Howatshaws Road in Bellsmyre.
He is then alleged to committed the same offence at around 8.15pm on Wednesday evening, the girl was walking on a path near to Poindfauld Terrace, Dumbarton, when the incident occurred.
She ran in the direction of Bonhill Road and informed her family who notified police.
In the third incident, the 33-year-old allegedly exposed himself to a 12-year-old girl on Meadow Road, Dumbarton, shorty after at 8.30pm Police have confirmed a 33-year-old man has been arrested in connection with the incidents and was detained in police custody.
He was expected to appear in Dumbarton Sheriff Court yesterday (Monday).
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