This is probably the biggest mystery about straight men, or men who self-identify as straight, even though they may or may not be. Many of them have no problem whatsoever with sucking cock, either as suckee or as sucker. They can trade blow jobs with another guy and swallow each other's loads, but a kiss is out of the question. Perhaps a kiss is the most intimate thing two people can do and it indicates an emotional bonding that sexual contact just doesn't have.

Click on my "other posts" link and pull up my Forum posting on Same Sex Kissing for further comments by me and by other members on this subject.