DNA

Whilst pulling on my locked up limp cock today a thought sprang into my mind about the last session i had with my mistress and how she and her friends were spitting on my face and in my mouth and i wondered if perhaps i still had some of their DNA in me because i swallowed their spit. This immidiatly moved to all the cocks i have sucked over the last 40 years and how much cum i have swallowed i could be like an ark for male DNA. Anybody have any thoughts on this? Funny to think of