sounds like small bruises maybe. Did you have red spots on your penis before this recent pump? Maybe those spots got worse and turned into bruises? Are they on your glans?
Starting length, Spring 2003: bpel 6 3/8", bpfsl ~6 1/2", flaccid ~3-4" (never measured flaccid stretched or hanging flaccid; starting girth was probably ~5"-5 1/4")
Summer 2004: bpel 7 7/8", bpfsl 8 1/8", flaccid ~4", erect girth 5.3"
Spring 2018: bpel 7 1/4", bpfsl 7 5/8", erect girth 5 1/8"; Spring 2020: bpel 7 3/4", bpfsl 8", erect girth 5 3/8". Current - August 2023: bpel 7 3/4", bpfsl 8", erect girth mid shaft 5 1/4" (5 1/2" at base)