He strains with the effort of keeping the orgasm in, there's a yell caught in the back of his throat that only comes out as a strangled and pained almost-squeal.

'Nonono stop!' He pleads it against his mouth, trying to kiss him and talk and stop himself thrusting into his hand at the same time. 'Can't yet, want to be in you, please...'

Although hell, this is painful to hold back from. Painful.