But this character in Tagame's new manga really looks like our Engineer, using his genius on evil erotism. Apparently the various tubes were designed to increase sexual tension in a person indefinitely at the same time plugging the victim so he cannot ejaculate. It's been a few days (or few weeks?) since the facility was first applied.
If this type of pics is ok for the moderator, I will post more.
Non-TF2 porn goes into /gay/, regardless of any similarities to the TF2 characters.
That's where I got it, yes, but I thought TF2 fans might find it amusing, because the victim is a military personal, i.e., a soldier too. Helmet party not so much, but there's a ring :)