Is there any such thing as the perfect boyfriend? You bet! I have two of them: the boyfriend shirt and the boyfriend shorts.
The term "boyfriend", as it relates to clothing, describes casual, loose-fitting, menswear-inspired pieces but cut to maintain and flatter the feminine shape. The appeal factor, other than the body-forgiving nature, comes from the impression that this look took little effort, like you just woke up that morning and threw on your man's stuff. There's a certain sexiness to delightfully disheveled nonchalance.
If you don't have one already, I highly encourage you to invest in a white silk button-down shirt, a timeless classic whose versatility in any situation makes it a definite wardrobe must-have. Equipment Signature makes some of the best out there - not too slim, not too loose. I can wear this shirt with cut-offs on the weekend, and then easily pair the shirt with a power suit for the boardroom.
Yes, indeed, the perfect boyfriend exists.