I wasn't necessarily warning of the stretch marks themselves. I am just saying that putting on too much fat is of no profit to you. If you are good with it, then whatever. You can gain just as much lean mass and gain less oveall body weight. Total body weight shouldn't be the goal.
Don't get me wrong, you by no means look chubby. You are doing good. Just an in-advance warning. If you begin to eat too sloppy, you will become dissatisfied with the amout fat gain and it's stubborn as shit too. Just don't overdo it is what I am saying.
Only you can judge it, so if you hav eno problems with it, then continue as is. but, if you do begin o feel like you are gaining too much extra body weight, then just reduce your carbs and it will quickly get taken care of.