The home side made a dream start when Forbes forced a turnover down the TCI left and his resulting cross was deflected out for a corner. Forbes took the corner and launched an inviting cross towards the penalty spot where Troy Caesar rose highest to head home.
The clock showed just over three minutes gone.
Buoyed by the early momentum, Forbes would make the visitors pay again inside the first eleven minutes, when his twist and turn led to a peach of a pass into Chalwell, who made no mistake from ten yards to make it 2-0.
The BVI, full of running and playing very disciplined in defense could have put the game out of reach of the TCI in the first half, with Forbes and Josh Bertie off target with the goal at the mercy.
Just before the break, the TCI were handed a lifeline when Christian Xavier was adjudged to have fouled Billy Forbes inside the area. Replays suggested the referee had gotten it wrong, but with no VAR intervention available in the Concacaf Nations League, the decision stood, and the TCI captain, Billy Forbes, hit his penalty with venom to make it 1-2.
A determined BVI came out on fire in the second half though and another delightful combination play between Forbes and Chalwell saw the latter score his second goal, smashing a half volley back across the keeper and into the net.
Highly intelligent game management from both players and coach, Chris Kiwomya, saw the young team deal with everything the TCI could muster and in face with the lightening pace of Johari Lacey playing up front, looked more likely to add to the score line than the visitors.
Next up for the team is a trip to face Dominica in October.