Guernsey's chief minister said he expects the island's States is to debate lowering the gay age of consent before the end of the year.
It follows a meeting between Guernsey and Jersey after Jersey made the move earlier this month to lower the legal age for homosexual sex from 18 to 16.
Chief Minister Laurie Morgan said he expected the issue to come to the States within the next few months.
In 1999 Guernsey lowered the age of consent from 21 to 18.
Mr Morgan said: "I'm sure that there will be States members who will say 'Why do we need to be pressurised into doing something like this?'
"But I believe the majority of members will see the common sense of it, bearing in mind that the age of heterosexual acts is 16 anyway."