Good Morning Sundeep......Your question made me chuckle. I think you may be on to something here, my dear friend. I also believe this can easily go both ways. Women may become less than reserved and intelligent when around attractive men. Yes?
This is pretty much a "human nature" type of situation, don't you think Sundeep?
Beauty and an air of confidence about a person is usually quite attractive. When a man sees an especially lovely vision of the female persuasion, the immediate reaction is instinctual. He becomes focused and/or transfixed on this pleasant vision of loveliness and the ego kicks in. ("I must impress this woman and bring attention to myself")
Most of the time in these cases a person becomes anxious or nervous and simply behaves in a forced, uncharacteristic way. He may find himself not thinking before speaking or feeling clumsy and simply doing "dumb" things without meaning to.
This might just be, because the male hormones overpower him, as well as perhaps bringing out the "little boy," in him who wants to show off. LOL.
By the way, Sundeep, 90% of the time, an attractive woman is well aware she has caused this poor man to trip all over himself. If she is wise, she will help to make him comfortable rather than embarrass him.
After all, the initial reaction is just a natural reflex......and this man is not dumb at all. He's merely been momentarily struck by Cupid's arrow......