it would be very hard to get dubcon right within the writing, (usually gets way too rapey, it is a hard line to ride down the middle) but if they pull it off well, her being super into it whilst very vocally protesting could actually be the hottest thing ever.
It fits the emerging personality of our MC, just need him to be strong enough to hold her in a full nelson and smash her back doors in whilst she's losing it trying to come to terms with the fact that she loves it.